Abstract:
This paper analyzes and discusses two congestion control mechanism in the continuous media stream communications in which UDP Is used, one is based on loss-rate, the other is based on RTT, and it points out each deficiency. It proposes a congestion control mechanism AOWDCC based on one way delay. Test in network simulate proves the superiority of the mechanism.
Key words:
Congestion control,
Round-trip time(RTT),
One-way delay,
Real-time multimedia communication,
Adaptive one-way delay congestion control(AOWDCC)
摘要: 对两种基于UDP实时流媒体拥塞控制机制——探讨基于丢包率的控制和基于往返时延 (Round-trip Time, RTT)的控制,提出一种在接收端通过单向延时预测拥塞的算法。与前两种拥塞驱动机制相比,单向时延自适应拥塞控制算法(AOWDCC)最大限度地缩短了拥塞反馈时间间隔,拥塞判断的实时性大大增强。采用NS模拟器,对基于丢包率的拥塞控制、基于RTT的拥塞控制和AOWDCC算法的性能进行仿真,验证了AOWDCC的优越性。
关键词:
拥塞控制,
往返时延,
单向时延,
实时多媒体通信,
AOWDCC
CLC Number:
LI Li; LI Min; XIAO Qing; JIANG Minbin. Research on Adaptive Congestion Control Based on One-way Delay[J]. Computer Engineering, 2007, 33(11): 110-112,.
李 力;黎 敏;肖 庆;江民斌. 基于单向时延的自适应拥塞控制的研究[J]. 计算机工程, 2007, 33(11): 110-112,.